LI-3100C Leaf Area Meter Brochure

®LI-3100CArea MeterLI-3100C Area MeterFast, Precise, Easy Operation0.1 mm2 resolution0.1 mm2 resolutionLI-3100C Area MeterRapid, Precise Area Measurement of Large orSmall Leaves• Adjustable Resolution: 0.1 or 1 mm2• High accuracy and repeatability• Individual or cumulative area• Fast, continuous operation for large quantities ofsamples• Large samples: 25 cm wide, 2.5 cm thick, 1mm2resolution• Small samples: <1 cm2 when using 0.1 mm2 resolution• Adjustable press roller to flatten curled leaves• LED display• Windows® software• USB and Serial portsVersatilityThe LI-3100C Area Meter is designed for efficient andexacting measurement of both large and small leaves.Adjustable resolution settings provide versatility for diverseproject requirements.A wide variety of leaves can be measured, ranging fromlarger samples such as corn, tobacco, and cotton to smallersamples such as wheat, rice or alfalfa. Small leaves or leafdiscs are measured with the same precision as largerleaves. The LI-3100C can also handle conifer needles, perforated leaves and leaves with irregular margins. This isespecially important in determining leaf damage and insectfeeding trails.OperationSamples are placed between the guides on the lower trans-parent belt and allowed to pass through the LI-3100C. Asthe sample travels under the fluorescent light source, theprojected image is reflected by a system of three mirrors toa scanning camera. This unique optical design results inhigh accuracy and dependability.An adjustable press roller flattens curled leaves and feedsthem properly between the transparent belts. This providesfor accurate measurement of small grasses, legumes, aquatic plants and similar types of leaves.As samples pass under the light source, the accumulatingarea in mm2 is shown on the LED display or on a computer screen when using the Windows® software.Calibration adjustments are easily accomplished using astandard area calibration disk (included) and turning the calibration screw located near the display.Data AnalysisThe LI-3100C Windows® Interface software allows usersto monitor data on a computer and store readings in alog file. The log file includes individual area, maximumwidth, average width, length, and cumulative area.Remarks can be entered for each logged value. Most text editor or spreadsheet programs can open LI-3100Cdata files.The Windows® Interface software also features:• Display of individual area, leaf length, average width,and maximum width• Indicator of resolution setting on the LI-3100C• Area counter reset, independent of the LI-3100C LEDdisplay • Support for both USB and serial connectionsSimplified MaintenanceCleaning the LI-3100C is simplified by convenient accessto all belt surfaces and mirrors. The transparent belts arerugged and durable. The fluorescent lamp and belts areeasy to replace when needed.The LI-3100C can be connected to a computer via a serialor USB connection. Simple Windows® software allows youto log data to a file.The Windows® software allows you to save data to a log file containing individual area, average width, maximum width,length, and cumulative area. Log files can be opened with a text editor or spreadsheet program (above, right).Distributors Worldwide4421 Superior Street • PO Box 4425 • Lincoln, NE 68504 USA • 800-447-3576 • 402-467-3576 • Fax: 402-467-2819www.licor.com • E-mail: envsales@licor.comLI-COR is an ISO 9001 registered company. © 2004 LI-COR, inc. Windows is a registered trademark of Microsoft Corporation.®980-07694Specifications:Resolution: 1 mm2 or 0.1 mm2 (adjustable)Scanning Area: 1 mm2 Resolution: 1 mm x 1 mm 0.1 mm2 Resolution: 0.300 mm W x 0.333 mm LDisplay Capacity: 1 mm2 Resolution: 999,999.99 cm20.1 mm2 Resolution: 99,999.999 cm2Display: Full 8-digit LEDWidth: 25.4 cm max; 1.5 to 3.0 mm minimum Thickness: Up to 2 cm, user-expandable to 2.5 cmLength: UnlimitedConveyor Belt Speed: 8.0 cm/s at 60 Hz; 6.7 cm/s at 50 HzLight Source: 15 W fluorescent tubeTransparent Belts: Rugged clear vinylPower Requirements: 108-126/216-252 VAC, 48 to 66 Hz, 100 W maxOperating Temperature: +15 to + 55 CStorage Temperature: -20 to + 65 CSize: 25.0 H x 60.0 W x 73.0 L cm (9.8” x 23.6” x 28.7”)Weight: 43 Kg (95 lb)Accuracy Sample AreaCombined accuracy and precision to 99% confidence with correct calibration on verifiable shapes. Better accuracy can be achieved by calibrating the LI-3100C and/or placing the leaf on the middle section of the belt. Use the 0.1 mm2 resolution for conifers, roots and other similar objects and expect the accuracy to be about 5% less than normal leaves.Ordering InformationLI-3100C Includes both 0.1 and 1 mm2 resolution, one each 3100TBL and 3100 TBU transparent belts, one3100LAMP fluorescent lamp, 3100-500 Windows interface software, RS-232 serial cable, USBcable, dust cover and instruction manual3100TBL Lower Transparent Belt3100TBU Upper Transparent Belt3100LAMP Fluorescent LampArea-sensing resolution is shifted between 1 and 0.1 mm2 with asimple procedure. For 1 mm2 resolution, the display is switchedfor two decimal places (1), and the camera lens is moved to theappropriate pre-marked location (2). For 0.1 mm2 resolution, thedisplay is switched for three decimal places, and the camera lensis moved to a second pre-marked location. The lens focus is setby LI-COR.1212Resolution 10 cm2 3 cm2 1 cm2 0.3 cm21 mm2 2.0% 3.0% 6.0% 10.0%0.1 mm2 1.0% 1.5% 3.0% 5.0%+ + + ++ + + +